I got a big tub of Kirkland Calcium + D3 (600mg) for my wife from Costco a while ago that expired 8/13. At the time we thought she would use/need it but ended up using very little of it.

Is it still ok/safe to take considering how long it's been expired? Or would it not be beneficial at all? We kinda forgot about it but I just dug it up after looking around for her prenatal vitamins. I figure it might be something she needs to take but wonder if it would be of any benefit.